From f4b267ff39686e2d6f0dc4a86a533e4416137c9c Mon Sep 17 00:00:00 2001
From: Leo Horie <leohorie@hotmail.com>
Date: Sat, 30 Jul 2016 15:46:14 -0400
Subject: [PATCH] don't duplicate html on updates

---
 mithril.js                      | 6 +++---
 render/render.js                | 4 ++--
 render/tests/test-updateHTML.js | 1 +
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/mithril.js b/mithril.js
index d5fd9668..e9c04d15 100644
--- a/mithril.js
+++ b/mithril.js
@@ -456,7 +456,7 @@ var renderService = function($window) {
 			toFragment(old)
 			insertNode(parent, createHTML(vnode), nextSibling)
 		}
-		else vnode.dom = old.dom
+		else vnode.dom = old.dom, vnode.domSize = old.domSize
 	}
 	function updateFragment(parent, old, vnode, hooks, nextSibling, ns) {
 		updateNodes(parent, old.children, vnode.children, hooks, nextSibling, ns)
@@ -1042,7 +1042,7 @@ var throttle = function(callback) {
 	var last = 0, pending = null
 	var timeout = typeof requestAnimationFrame === "function" ? requestAnimationFrame : setTimeout
 	return function(synchronous) {
-		var now = new Date().getTime()
+		var now = Date.now()
 		if (synchronous === true || last === 0 || now - last >= time) {
 			last = now
 			callback()
@@ -1051,7 +1051,7 @@ var throttle = function(callback) {
 			pending = timeout(function() {
 				pending = null
 				callback()
-				last = new Date().getTime()
+				last = Date.now()
 			}, time - (now - last))
 		}
 	}
diff --git a/render/render.js b/render/render.js
index 29fc9b7d..a387e687 100644
--- a/render/render.js
+++ b/render/render.js
@@ -216,7 +216,7 @@ module.exports = function($window) {
 			toFragment(old)
 			insertNode(parent, createHTML(vnode), nextSibling)
 		}
-		else vnode.dom = old.dom
+		else vnode.dom = old.dom, vnode.domSize = old.domSize
 	}
 	function updateFragment(parent, old, vnode, hooks, nextSibling, ns) {
 		updateNodes(parent, old.children, vnode.children, hooks, nextSibling, ns)
@@ -356,7 +356,7 @@ module.exports = function($window) {
 				}
 			}
 			if (vnode.dom.parentNode != null) parent.removeChild(vnode.dom)
-			if (context != null && vnode.domSize == null && !hasIntegrationMethods(vnode.attrs) && typeof vnode.tag === "string") { //TODO test custom elements
+			if (context != null && vnode.domSize == null && !hasIntegrationMethods(vnode.attrs) && typeof vnode.tag === "string" && vnode.tag !== "<") { //TODO test custom elements
 				if (!context.pool) context.pool = [vnode]
 				else context.pool.push(vnode)
 			}
diff --git a/render/tests/test-updateHTML.js b/render/tests/test-updateHTML.js
index 04b27558..c678e539 100644
--- a/render/tests/test-updateHTML.js
+++ b/render/tests/test-updateHTML.js
@@ -20,6 +20,7 @@ o.spec("updateHTML", function() {
 		render(root, [updated])
 
 		o(updated.dom).equals(root.firstChild)
+		o(updated.domSize).equals(1)
 		o(updated.dom.nodeValue).equals("b")
 	})
 	o("adds html", function() {